diff options
Diffstat (limited to 'drivers/tty/serial/serial-tegra.c')
| -rw-r--r-- | drivers/tty/serial/serial-tegra.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c index e5b9773db5e3..1cf08b33456c 100644 --- a/drivers/tty/serial/serial-tegra.c +++ b/drivers/tty/serial/serial-tegra.c @@ -1046,6 +1046,7 @@ static int tegra_uart_hw_init(struct tegra_uart_port *tup) if (tup->cdata->fifo_mode_enable_status) { ret = tegra_uart_wait_fifo_mode_enabled(tup); if (ret < 0) { + clk_disable_unprepare(tup->uart_clk); dev_err(tup->uport.dev, "Failed to enable FIFO mode: %d\n", ret); return ret; @@ -1067,6 +1068,7 @@ static int tegra_uart_hw_init(struct tegra_uart_port *tup) */ ret = tegra_set_baudrate(tup, TEGRA_UART_DEFAULT_BAUD); if (ret < 0) { + clk_disable_unprepare(tup->uart_clk); dev_err(tup->uport.dev, "Failed to set baud rate\n"); return ret; } @@ -1226,10 +1228,13 @@ static int tegra_uart_startup(struct uart_port *u) dev_name(u->dev), tup); if (ret < 0) { dev_err(u->dev, "Failed to register ISR for IRQ %d\n", u->irq); - goto fail_hw_init; + goto fail_request_irq; } return 0; +fail_request_irq: + /* tup->uart_clk is already enabled in tegra_uart_hw_init */ + clk_disable_unprepare(tup->uart_clk); fail_hw_init: if (!tup->use_rx_pio) tegra_uart_dma_channel_free(tup, true); |